feat(aggregation-mode): scrap metrics with prometheus and visualize via Grafana dashboard (#2218)

Author: maximopalopoli

aggregation_mode/Cargo.lock

@@ -16,6 +16,7 @@ aligned-sdk = { path = "../crates/sdk/" }
 db = { path = "./db" }
 sp1-sdk = "5.0.0"
 risc0-zkvm = { version = "3.0.3" }
+prometheus = { version = "0.13.4", features = ["process"] }
 
 [profile.release]
 opt-level = 3

aggregation_mode/Cargo.toml

@@ -7,6 +7,7 @@ edition = "2021"
 serde =  { workspace = true }
 serde_json = { workspace = true }
 serde_yaml = { workspace = true }
+prometheus = { workspace = true }
 agg_mode_sdk = { path = "../sdk"}
 aligned-sdk = { workspace = true }
 sp1-sdk = { workspace = true }
@@ -16,6 +17,7 @@ tracing-subscriber = { version = "0.3.0", features = ["env-filter"] }
 bincode = "1.3.3"
 actix-web = "4"
 actix-multipart = "0.7.2"
+actix-web-prometheus = "0.1.2"
 alloy = { workspace = true }
 tokio = { version = "1", features = ["time"]}
 # TODO: enable tls

aggregation_mode/gateway/Cargo.toml

@@ -9,6 +9,7 @@ pub struct Config {
     pub db_connection_urls: Vec<String>,
     pub network: String,
     pub max_daily_proofs_per_user: i64,
+    pub gateway_metrics_port: u16,
 }
 
 impl Config {